ScreenShot - description from Softdepia.com:

Using your Print Screen key, ScreenShot will capture your present screen and provide you with options to save, modify, email, display, print and copy to clipboard it. One of the most appealing features is the option to choose your shot selection. Shots can be captured in full-screen, active window or cursor selection and will automatically save and open the shot in your default graphics application! ScreenShot is a really useful utility that runs in your system tray and even provides you with complete automation for each process. It is quick, very easy to operate, and provides you with greater control over your screen shots without having to use a separate program to get the results you want. The program uses a wizard format to guide you through the steps of processing your screen shots. ScreenShot is definitely the best choice for computer journalist, documentation creators and to print everything you see on the screen. No nag-screens, includes optional cursor capturing and uninstaller.

ScreenShot is a "Free to try" program. You can download and try it for an evaluation period.